OpenStack Hardware Calculator: Mirantis have an interesting OpenStack calculator which lets you how many and how big you want your average virtual machine, pick hardware and networking vendor and whether you want high availability or not. It comes back to you with a couple of configurations based on those requirements and $ pricing of the cloud’s hardware.

Boot2Gecko on Rock and Paper: Via has announced a preview of Boot2Gecko for it’s APC single board ARM-based PCs “Rock” and “Paper”. Boot2Gecko is the name of Firefox OS when its on unblessed devices as Liliputing pointed out, although the GitHub repository is still labelled APC-Firefox-OS. There’s plenty of known issues, but Via are offering free APCs to anyone who fixes them and sends a pull request. Wondering what to fix? There’s a list of bugs and enhancements awaiting work.

Python Debugging: Over on Hacker News, people are recommending pudb, the Python Urwid Debugger, which works in the console as a full terminal application. Older hands will get the “Turbo Pascal” vibe from it as it appears to have take some inspiration from there. So, Unix based Python programmers may want to check it out.

A warning about storage: A useful reminder from Christopher Deutsch’s blog about making sure that when you release an open source project you aren’t including any URLs which will cost you money. In Deutsch’s case it was a test file on Amazon S3 which was used by HiSRC to check bandwidth… and has just cost him $20 on his monthly Amazon bill.